C, as they are on the same plane, (it is uncommon to find non co-planar lines)
D, as that symbol means parallel
A is untrue as they are on the same plane
B is untrue as that symbol means perpendicular
E is untrue as perpendicular means the two lines intersect and form 90 degree angles
F is untrue as parallel lines never intersect
Answer:
the event is odds against an event of the 19 to 12 is probability is the 19
If full then the stadium could have held 60000 people over 3 days.
It really held 17563+18126+16618 over the 3 days = 52307 people. To work out the difference 60000 - 52307 = 7693
Therefore 7693 seats were free over the 3 day period and so 7693 more people could have attended the concerts overall
The scientific notation of 0.25 is 2.5 x 10⁻¹
Scientific notation is used to handle numbers that are very big or very small.
It has 3 parts, the coefficient, the base and the exponent.
There must be 1 digit before the decimal point in the coefficient.
10 is always the base
the exponent signifies the number of places the decimal has moved from its original location to the location before 1 digit. Positive exponent signifies that the decimal point is shifted to the right. Negative exponent signifies that the decimal point is shifted to the left.
In the above scientific notationl
2. 5 is the coefficient
10 is the base
-1 is the exponent. the decimal point shifted one place to the left.
